|Publication number||US4072151 A|
|Application number||US 05/775,964|
|Publication date||Feb 7, 1978|
|Filing date||Mar 9, 1977|
|Priority date||Mar 31, 1975|
|Publication number||05775964, 775964, US 4072151 A, US 4072151A, US-A-4072151, US4072151 A, US4072151A|
|Inventors||Faye E. Levine|
|Original Assignee||Levine Faye E|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (52), Classifications (13)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is a continuation-in-part of U.S. patent application Ser. No. 556,195 filed on Mar. 31, 1975 by the same inventor, which application is hereby expressly abandoned upon the filing of this application.
This invention relates generally to sanitary napkins and, in particular, to a sanitary napkin that may be adhesively secured to the wearer thereby dispensing with the need for supporting belts. The present napkin is more absorbent and longer lasting, plus adjustable to the required snugness of the wearer.
In women, the menstrual cycle is commonly repeated every 4 weeks from the time of puberty to menopause. Two types of commercially available catamenial devices are currently in use for the purpose of absorbing or stopping the menstruous flow; namely the tampon and the sanitary napkin. While tampons seem to offer marked advantages over sanitary napkins, their use is not always possible. For example, the tampon is not acceptable after childbirth, nor can it be used in post-surgical periods or when pathological conditions exist. The tampon is also inadequate when menstrual flow is heavy because of its limited capacity to abosrb secretions.
The tampon is a piece of cotton or other absorbent material, insertable in the vaginal opening. The sanitary napkin is not inserted, but is commonly held in place by means of a supporting belt or attached to the undergarment by means of an adhesive tape. These methods of securing the sanitary napkin exhibit a number of serious drawbacks. The belt may twist and turn causing irritation and chafing. The belt itself may be visibly outlined under normal clothing thereby revealing that the woman is menstruating. The sanitary napkin may also cause irritation and chafing of the skin, especially if it is not securely fastened. Attaching the napkin to the undergarment presents additional drawbacks. The napkin will tend to move with the undergarment rather than the body, resulting in a less secure fit and increased irritation and chafing. Removing the sanitary napkin from the undergarment can also be a messy procedure, sometimes resulting in the tearing or staining of the undergarment.
In the construction of sanitary napkins, an important objective is to control the absorption and flow of exudate in a manner which obtains maximum utilization of the available absorbent capacity of the napkin. Ideally, a sanitary napkin is exected to (1) immediately accept all exudate discharged on its top surface, (2) rapidly transport the exudate away from the point of discharge, (3) contain the transported exudate within the marginal confines of the napkin until substantially all of the absorbent capacity is used, and (4) maintain the body contacting surface of the napkin as dry as possible.
Sanitary napkins are available in various sizes, but the modern trend is toward smaller and inconspicuous napkins. While the smaller napkin may be more desirable for modern dress styles, it contains less absorbent material and is prone to leak and stain the undergarments. Thus a small sanitary napkin cannot perform the expected functions listed above without frequent and regular changing.
While the sanitary napkin may be preferable in many respects to the tampon, the practical and aesthetic disavantages of existing designs are displeasing, so that many women make use of tampons even though their requirements would be better served by sanitary napkins. If unable to use tampons, many women are forced to use sanitary napkins that simply do not do the job.
The improved sanitary napkin of this invention is made up of an elongate multilayered pad element, in which the element consists of two absorption layers of cotton-like material separated by a sheet of perforated plastic. The pad element is approximately four inches wide and fifteen to eighteen inches long filled throughout with absorptive material. A full-length fluid impermeable sheet of plastic envelopes the lower half of the napkin extending around and over the marginal sides of the napkin. The top absorption layer of the napkin is covered with a non-irritating gauze-like material. The sides of the napkin are enclosed by a paper-like, non-irritating adhesive to prevent chafing and irritation of the skin. The pad element is also equipped with two strips of peel-off tape tabs which are skin adherring, but non-irritating. The tape tabs may be applied vertically or horizontally to the skin as desired along the ends of the napkin. If a person desires to use a supporting belt, the tape tabs may be applied to the supporting belt, but the napkin may move out of position due to normal body movment.
Exudate striking the gauze-like layer is immediately transported to the top absorption layer. As the top absorption layer becomes saturated, the perforated sheet evenly distributes the exudate to the lower absorption layer. Even dispersal prevents bleed-through and staining of the undergarment. The long length of the sanitary napkin of this invention increases its absorptive capacity thus reducing the number of required changings.
It is main object of this invention to provide an improved sanitary napkin.
It is another object of this invention to provide an improved sanitary napkin that does not require a supporting belt.
It is yet another object of this invention to provide non-irritating, skin adhesive tape strips for securing a sanitary napkin to the body of the wearer.
It is still another object of this invention to provide a sanitary napkin employing a perforated sheet between absorbent layers for effective and even dispersal of exudate to both absorbent layers.
It is still another object of this invention to provide a sanitary napkin which functions effectively, yet it may be worn comfortably without chafing or irratating the skin.
FIG. 1 is a perspective view of a sanitary napkin showing a preferred embodiment of this invention.
FIG. 2 is a frontal environmental view illustrating position and connection of the sanitary napkin.
FIG. 3 is a rear environmental view illustrating position and connection of the sanitary napkin.
FIG. 4 is a sectional view taken along section lines 4--4 of FIG. 1.
FIG. 5 is a sectional view taken along section lines 5--5 of FIG. 1.
FIG. 6 is a perspective view partially broken away to show internal construction of the sanitary napkin.
Catamenial napkins are universally used by women with varying success. Some women find the modern trend toward smaller, inconspicuous napkins convenient, and use the smaller napkins with a great deal of success. However, some women, especially those with heavy menstrual flow, have found that the smaller inconspicuous napkins, although more desirable, simply do not do the job.
Referring now to the drawings, there is shown a sanitary napkin in accordance with the invention. The napkin, as shown in FIG. 1, is an elongated pad element generally designated by numeral 10. When properly attached to the body of the wearer, tab 12 is taped in front just below the navel as shown in FIG. 2, and tab 4 is taped to the small of the back above the cleavage of the buttocks as shown in FIG. 3.
Tha napkin 10, as shown in FIG. 6 is backed by an impermeable sheet of plastic 20 extending around and over the marginal sides of the napkin 10. Bottom absorption layer 22 is covered by a plastic perforated sheet 24. The function of perforated sheet 24 is to evenly distribute the body fluid exudate from top absorption layer 26 to bottom absorption layer 22, thus avoiding a localized area of saturation at the point of discharge. Without perforated sheet 24, discharged exudate would quickly penetrate the layers of absorptive material and from a localized area of saturation at the point of discharge. As noted many times in the prior art, localized saturation is considered undesirable. As top absorption layer 26 becomes saturated, the exudate will penetrate to perforated sheet 24 and seep through the holes in perforated sheet 24 to bottom absorption layer 22. While the configuration of the holes in perforated sheet 24 can be varied, the holes should be spaced far enough apart to avoid the localizing effect discussed above.
Gauze layer 28 covers top absorption layer 26 and extends over the marginal sides of the napkin 10. In the preferred embodiment, gauze layer 28 is a fluid-permeable material retaining little, if any, of the exudate discharged, which maintains the contact area between the gauze layer 28 and the wearer as dry as possible.
To avoid chafing and irritation of the skin, a paper-like tape 30, as shown in FIG. 6, encloses the napkin 10 around its marginal sides. Tape 30, which is non-irritating, prevents plastic layer 20 which extends over and around the marginal sides of the napkin 10 from irritating the inner thighs of the wearer.
FIGS. 4 and 5 are sectional view of the invention showing absorption layers 22 and 26 and perforated sheet 24 extending the full length and width of the napkin 10. Also shown in FIG. 5 is tape 30 enclosing the marginal sides of the napkin 10 at the junction of gauze layer 28 and plastic layer 20.
Referring again to FIG. 1, tape tab 12 is shown at one end of the napkin 10. The adhesive side 11a of tape tab 12 is covered with a protective sheet 11 which is peeled off only before securing tape tab 12 to the skin of the wearer. The adhesive side 11a of tape tabs 12 and 14 is of the type used in high quality, plastic surgical bandages. Tape tabs 12 and 14 are non-irritating to the skin and remain securely attached to the skin of the wearer until deliberately removed.
While there has been shown and described a preferred embodiment of a sanitary napkin in accordance with the invention, it will be appreciated that many changes and modifications may be made therein without, however, departing from the essential spirit of the invention. The absorption layers 22 and 26 may be made from any suitable absorbent material, such as cotton.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3411504 *||Jun 24, 1965||Nov 19, 1968||Jacob A. Glassman||Sanitary napkins|
|US3563242 *||Jan 25, 1968||Feb 16, 1971||Bengt Hedstrom||Diaper|
|US3651809 *||Feb 24, 1970||Mar 28, 1972||Kimberly Clark Co||Baffle for sanitary protection devices|
|US3724466 *||Nov 10, 1971||Apr 3, 1973||L Hendricks||Sanitary napkin|
|US3736931 *||Jun 9, 1971||Jun 5, 1973||J Glassman||Catamenial napkin|
|US3769979 *||Jul 17, 1972||Nov 6, 1973||E Freney||Sanitary napkin|
|US3830237 *||Mar 27, 1973||Aug 20, 1974||Kimberly Clark Co||Method for scenting tampons and product obtained thereby|
|US3906952 *||Nov 27, 1970||Sep 23, 1975||Sophie Zamist||Anatomically-contoured sanitary napkin|
|US3927673 *||Aug 12, 1974||Dec 23, 1975||Colgate Palmolive Co||Quilted diaper|
|FR1126776A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4484919 *||Oct 25, 1982||Nov 27, 1984||Affiliated Surgical Supplies||Rectal area dressing|
|US4753648 *||May 8, 1987||Jun 28, 1988||Personal Products Company||Sanitary napkin adhesively attached via elastic member|
|US5520675 *||Oct 21, 1994||May 28, 1996||Knox-Sigh; Annette||Feminine hygiene pad|
|US5618281 *||Jan 20, 1995||Apr 8, 1997||Kimberly-Clark Corporation||Adhesive composition comprising a polysiloxane|
|US5618282 *||Oct 16, 1995||Apr 8, 1997||Kimberly-Clark Corporation||Removal aids for adhesively secured absorbent articles|
|US5620429 *||Jun 22, 1995||Apr 15, 1997||Al-Saleh; Abdul A. A.||Feminine napkin allows external sexual intercourse|
|US5807367 *||Nov 27, 1996||Sep 15, 1998||Kimberly-Clark Worldwide, Inc.||Absorbent article having lateral barriers|
|US6033391 *||May 21, 1998||Mar 7, 2000||The Procter & Gamble Company||Toilet-disposable absorbent interlabial device|
|US6191189||Dec 22, 1997||Feb 20, 2001||The Procter & Gamble Company||Adhesive for secure topical attachment to the skin and comfortable removal|
|US6213993||Jun 7, 1996||Apr 10, 2001||Kimberly-Clark Worldwide, Inc.||Self-adhering absorbent article|
|US6277106||Jul 23, 1997||Aug 21, 2001||Kimberly-Clark Worldwide, Inc.||Absorbent article having an improved fastenability|
|US6613031||Dec 22, 2000||Sep 2, 2003||Mcneil-Ppc, Inc.||Sanitary napkin with intergluteal strip|
|US6632210||Dec 22, 2000||Oct 14, 2003||Neil-Ppc, Inc.||Sanitary napkin with intergluteal strip|
|US6716204||Oct 28, 1998||Apr 6, 2004||The Procter & Gamble Company||Absorbent article with improved feces containment characteristics|
|US6824535 *||Dec 7, 2001||Nov 30, 2004||Sca Hygiene Products Ab||Absorbent article|
|US6997915||Jun 12, 2001||Feb 14, 2006||Mcneil-Ppc, Inc.||Sanitary napkin with adjustable length intergluteal strip|
|US7122022||Dec 27, 2000||Oct 17, 2006||Sca Hygiene Products Ab||Absorbent product with fastening arrangements|
|US7125401||Jan 14, 2003||Oct 24, 2006||Uni-Charm Corporation||Absorbent article with front and rear supporting members|
|US7749214 *||Sep 26, 2006||Jul 6, 2010||Seon-Moon Hwang||Disposable undergarment for medical treatment and surgery|
|US7918837 *||Dec 18, 2007||Apr 5, 2011||Mcneil-Ppc, Inc.||Body-attachable sanitary napkin|
|US7927322||Jun 13, 2006||Apr 19, 2011||Kimberly-Clark Worldwide, Inc.||Body-adhering personal care product|
|US7939706||Oct 10, 2007||May 10, 2011||Hitachi, Ltd.||Automatic urine disposal device and urine receptacle used therefor|
|US8062275 *||Jul 30, 2008||Nov 22, 2011||Kimberly Clark Worldwide, Inc.||Body adhering absorbent article and method for donning such article|
|US8251969||Aug 3, 2007||Aug 28, 2012||Kimberly-Clark Worldwide, Inc.||Body adhering absorbent article|
|US8292862||Jul 22, 2009||Oct 23, 2012||Kimberly-Clark Worldwide, Inc.||Dynamic fitting body adhering absorbent article|
|US8672911||Feb 2, 2009||Mar 18, 2014||Kimberly-Clark Worldwide, Inc.||Body adhering absorbent article|
|US8702672||Feb 2, 2009||Apr 22, 2014||Kimberly-Clark Worldwide, Inc.||Body adhering absorbent article|
|US8715261||Mar 19, 2012||May 6, 2014||Kimberly-Clark Worldwide, Inc.||Absorbent article having line of weakness for folding the article|
|US8734413||Feb 2, 2009||May 27, 2014||Kimberly-Clark Worldwide, Inc.||Packaged body adhering absorbent article|
|US8734415||Sep 22, 2011||May 27, 2014||Kimberly-Clark Worldwide, Inc.||Body adhering absorbent article|
|US8753324||Apr 11, 2011||Jun 17, 2014||Kimberly-Clark Worldwide, Inc.||Body adhering absorbent article|
|US8911418||Jul 26, 2012||Dec 16, 2014||Kimberly-Clark Worldwide, Inc.||Body adhering absorbent article|
|US9072636||Sep 17, 2012||Jul 7, 2015||Kimberly-Clark Worldwide, Inc.||Dynamic fitting body adhering absorbent article|
|US9132049 *||Sep 2, 2011||Sep 15, 2015||Kimberly-Clark Worldwide, Inc.||Body attached absorbent article donning system|
|US20020072725 *||Dec 7, 2001||Jun 13, 2002||Ewa Kolby-Falk||Absorbent article|
|US20050070861 *||Sep 30, 2004||Mar 31, 2005||Kenichi Okabe||Automatic urine disposal device and urine receptacle used therefor|
|US20120022484 *||Sep 18, 2009||Jan 26, 2012||Uni-Charm Corporation||Absorbent article|
|US20130060221 *||Mar 7, 2013||Robert Lee Popp||Body Attached Absorbent Article Donning System|
|USD713619||Mar 15, 2013||Sep 23, 2014||The Underwares Group, Llc||Lower body garment gusset panel with pointed ends|
|USD714029 *||Mar 15, 2013||Sep 30, 2014||The Underwares Group, Llc||Panel for lower body garment|
|USD718918||Mar 15, 2013||Dec 9, 2014||The Underwares Group, Llc||Lower body garment gusset panel with pointed end|
|USD724818||Feb 21, 2014||Mar 24, 2015||The Underwares Group, Llc||Lower body garment gusset panel with lips shape|
|USD724819||Mar 6, 2014||Mar 24, 2015||The Underwares Group, Llc||Lower body garment gusset panel with butterfly shape|
|USD726393||Jun 20, 2013||Apr 14, 2015||The Underwares Group, Llc||Undergarment gusset|
|USH1602 *||Mar 31, 1995||Oct 1, 1996||Brock; Cheryl K.||Self-adhering disposable absorbent article|
|EP0119919A1 *||Mar 13, 1984||Sep 26, 1984||Laboratoires Biotrol||Urine-absorbing pad for incontinent women|
|EP0360285A2 *||Sep 22, 1989||Mar 28, 1990||McNEIL-PPC, INC.||Absorbent body having hydrophobic insert|
|EP1327433A2 *||Jan 14, 2003||Jul 16, 2003||Uni-Charm Corporation||Body-adhering absorbent article|
|EP1520566A1 *||Sep 29, 2004||Apr 6, 2005||Hitachi, Ltd.||Automatic urine disposal device and urine receptacle used thereof|
|WO1996029968A1 *||Feb 21, 1996||Oct 3, 1996||Procter & Gamble||Self-adhering disposable absorbent article|
|WO1998023305A1 *||Nov 25, 1996||Jun 4, 1998||Kimberly Clark Co||Adhesive composition comprising a polysiloxane|
|WO2001049232A1 *||Dec 27, 2000||Jul 12, 2001||Solgun Drevik||Absorbent product with fastening arrangements|
|International Classification||A61F13/15, A61F13/56|
|Cooperative Classification||A61F2013/53445, A61F13/534, A61F13/58, A61F13/53717, A61F13/82, A61F2013/583, A61F13/539, A61F2013/53908, A61F2013/53782|